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04-01-2024
Physics

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A heating element is made by maintaining a potential difference of 61.0 V across the léngth of a Nichrome wire that has a 2.61×10^−6 m^2 cross section. Nichrome has a resistivity of 5.00×10^−7 Ω⋅m. (a) If the element dissipates 7780 W. what is its length? (b) if 102 V is used to obtain the same dissipation rate, what should the length be? (a) Number Units (b) Number Units

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